RF Modeling in COMSOL Multiphysics®

April 19–22, 2022 12:00 p.m. EDT

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Join us for a 4-day online training course to advance your skills in RF and wave optics modeling.

Day 1: Modeling Resonant Structures, Waveguides, and Transmission Lines

12:00 p.m.–2 p.m. EDT

Setting Up Models with the RF Module: In this session, you will learn how to set up mathematical models of devices such as antennas, waveguides, filters, circuits, cavities, and metamaterials using the RF Module. We will discuss the following topics:

  • Different types of excitation, such as plane wave, dipole wave, and cylindrical wave
  • Using Port conditions to excite waveguide structures
  • Evaluating scattering parameters
  • Plotting E-field propagation for different phases without recomputing the model
  • Features such as Perfect Electric Conductor (PEC), Perfect Magnetic Conductor (PMC), Impedance boundary condition (IBC), Transition boundary condition (TBC), and Perfectly Matched Layers (PML)

3 p.m.–6 p.m. EDT

Modeling Waveguides and Transmission Lines: You will learn approaches for modeling RF waveguides and transmission lines, including how to use propagation constants, impedance, and S-parameters to characterize these devices. The session will cover:

  • The time-harmonic transmission line equation for the electric potential for electromagnetic wave propagation along one-dimensional transmission lines
  • Modeling time domain reflectometry and signal integrity analysis
  • Applications such as coaxial cables and RF waveguides

Modeling Resonant Structures: In this session, you will learn how to model RF and microwave resonant structures. The session will cover:

  • Evaluating the resonant frequency and quality factor of closed- and open-cavity structures by solving the eigenvalue problem
  • Applications such as microwave cavities, optical resonators, and coil resonance structures

Day 2: Modeling Passive Devices, Couplers, Filters, and Antennas

12:00 p.m.–2 p.m. EDT

Modeling Passive Devices, Couplers, and Filters: In this session, you will learn about modeling passive devices, couplers, and filters. We will cover:

  • Approaches for modeling passive devices, RF/microwave couplers, and filters
  • Combining resonant structures and transmission lines
  • Quantifying the electric and magnetic field distribution, impedance, and S-parameters
  • Application areas such as 3-dB couplers, power dividers, and bandpass filters

3 p.m.–6 p.m. EDT

Modeling Antennas and Other Radiating Systems: In this session, you will learn about modeling transmitting and/or receiving radiated electromagnetic energy devices. We will cover:

  • Using the Impedance boundary condition for taking into account the skin effect at a very high frequency
  • Using perfectly matched layers (PMLs) in order to truncate the modeling domains effectively
  • Geometry and meshing techniques needed while considering PML
  • Quantifying far-field patterns, losses, gain, directivity, impedance, and S-parameters
  • Application areas such as microstrip patch antennas, Vivaldi antennas, and dipole antennas

Day 3: Modeling RCS Using Scattering Analysis and Periodic Structures

12:00 p.m.–2 p.m. EDT

Scattering Analysis: In this session, we will learn about scattering analysis. We will discuss:

  • How background electromagnetic fields of known shape, such as plane waves, interact with various materials and structures
  • How to quantify the scattering cross section, absorption cross section, and the associated losses
  • How to visualize the total fields and scattered fields
  • Major applications involving Mie scattering and radar cross section (RCS) calculations

3 p.m.–6 p.m. EDT

Modeling Periodic Structures: In this session, you will learn about approaches for modeling periodic structures that repeat in one, two, or all three directions. We will also cover:

  • Performing analysis of a single unit cell with Floquet periodic boundary conditions
  • Application areas including frequency selective surfaces, optical gratings, and electromagnetic band gap structures

Day 4: Modeling Dispersive Materials and Multiphysics Analysis

12:00 p.m.–2 p.m. EDT

Dispersive and Frequency-Dependent Materials: In this session, you will learn an approach for modeling harmonics via a transient wave simulation using nonlinear material properties. We will also cover:

  • Modeling capability of the full time-dependent wave equation in dispersive media
  • An approach for modeling a linear material model described by a sum of Drude–Lorentz resonant terms

3 p.m.–6 p.m. EDT

Modeling Multiphysics Electromagnetics Analysis: In this session, you will learn how an electromagnetic wave interacts with any loss materials. We will cover:

  • Quantifying the losses and how the losses lead to the rise in temperature over time
  • Approach for performing bidirectionally couplings with the thermal equation with any losses computed from solving the electromagnetic problem
  • Application areas including thermal drift in a cavity filter, microwave ovens, absorbed radiation in living tissue, tumor ablation, effects of deformation on the modes of propagation, and stress-optical effects

Suggested Background

This course assumes familiarity with the fundamentals of RF modeling. We strongly recommend that those new to COMSOL Multiphysics® take the COMSOL Multiphysics® Introduction course prior to attending this class.

Pricing & Payment Methods

The price for this 4-day course is $795 per person.

  • We offer an academic discount to those who qualify. The academic rate for this course is $595.

We accept payment by credit card, company purchase order, check, wire, or direct deposit. For security purposes, please do not send credit card information via email.

Mail payments or purchase orders to:

100 District Avenue
Burlington, MA 01803

Fax purchase orders to:

ATTN: Training

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Please review our course cancellation/return policies. For additional information, please email info@comsol.com.

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Training Course Details

Local Start Time:
April 19–22, 2022 | 12:00 p.m. EDT (UTC-04:00)
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Rustu Umut Tok

Rustu Umut Tok joined COMSOL in 2011 as a senior applications engineer, specializing in RF and wave optics. He has a BSc in physics, MSc in biomedical engineering, and PhD in mechatronics engineering. He was a postdoctoral researcher at the UCLA Electrical Engineering Department and worked on several research projects covering different aspects of electromagnetics and optics.